Martin Laird (born 29 December 1982) is a Scottish professional golfer, playing on the PGA Tour. He has won two PGA Tour events in his career, most notably the Arnold Palmer Invitational in 2011. Until Russell Knox earned his card via the 2011 Nationwide Tour, Laird was the only Scottish player on the PGA Tour.

Laird was born in Glasgow, Scotland and played his Junior golf at Kirkintilloch Golf CLub and then moving to play his youth golf at Hilton Park Golf Club. He learned to play golf left-handed but eventually switched to playing right-handed.

In 2000, at the age of 17 and with the assistance of College Prospects of America, Laird moved to the United States to take up a golf scholarship at Colorado State University under head coach Jamie Bermel. He played for the Colorado State Rams in the Mountain West Conference which had been established in 1999. Playing for four years from 2000-01 to 2003-04 he won four individual titles in college events. His wins were in the Mountain West Conference Men's Golf Championship (1 May 2002), El Diablo Intercollegiate (16 March 2003), Ping Golf Cougar Classic (26 April 2003) and Border Olympics (2 April 2004). In his last 3 years he was selected as one of the All Mountain West Conference Selections. He graduated with a degree in marketing in 2004.

William Harlan Haas (born May 24, 1982) is an American professional golfer who plays on the PGA Tour and won the 2011 FedEx Cup. He is the son of former PGA Tour player Jay Haas.

Haas was born in Charlotte, North Carolina and was raised in Greer, South Carolina, a suburb of Greenville. He was the third member of his family to play golf at Wake Forest University in Winston-Salem, North Carolina following his father, Jay, and uncle, Jerry. Haas had a distinguished college career. He was a three-time first-team All-American, four-time All-ACC, two-time ACC player-of-the-year, and 2001 ACC rookie-of-the-year. During his college career, he won ten college tournaments; and in his senior year of 2004, he won the Haskins Award, the Jack Nicklaus Award, and the Ben Hogan Award. He also set an NCAA record for lowest scoring average. Haas was a member of the 2003 Walker Cup team as well as two Palmer Cup teams. He turned professional in 2004.

Haas was a member of the Nationwide Tour in 2005 after failing to earn his PGA Tour card in qualifying school. His best finish in a Nationwide Tour event was a solo 2nd at the 2005 Scholarship America Showdown. At the end of the season Haas birdied the last two holes at the 2005 Qualifying tournament to earn his card on the PGA Tour for the 2006 season.

Luke Campbell Donald (born 7 December 1977) is an English professional golfer who is the current World Number One. He plays mainly on the U.S. based PGA Tour but is also a member of the European Tour. Donald had an outstanding year in 2011, winning several tournaments and awards. He won the PGA Tour money list and European Race to Dubai to complete a historic double. He is the only player to ever win both money lists on the PGA and European Tours in the same year. He was named the PGA Player of the Year and PGA Tour Player of the Year, becoming the first Englishman to win either award. He was also named the European Tour Golfer of the Year. He also became the first Englishman to win the PGA Tour's Vardon Trophy and the first golfer other than Tiger Woods to win the Mark H. McCormack Award for the most weeks at number one during a calendar year. In May 2012, Donald was awarded honorary life membership of the European Tour for his achievements in 2011.

In May 2011 Donald became the number one golfer in the Official World Golf Ranking after winning the BMW PGA Championship. He held the number one position for 40 weeks between May 2011 and March 2012 before being briefly dethroned on 4 March 2012 by Rory McIlroy. Two weeks later, Donald regained the number one ranking with his victory at the Transitions Championship on 18 March 2012. McIlroy regained the top ranking on 15 April 2012, only for Donald to claim the top ranking for a third spell on 29 April 2012. He lost the top spot again the following week after McIlroy's runner-up finish at the Wells Fargo Championship. Donald regained the world number one ranking with his victory at the BMW PGA Championship on 27 May 2012. He has spent over 100 weeks in the top-10.